All names: Gaia DR2 3678715462701462144, PG1245-042, GALEX J124813.9-043047, Gaia DR3 3678715462701462144, PG 1245-042, 2MASS J12481389-0430471, TIC 349566343, [HMD92] 789-2
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 12 48 13.94 | 12 48 13.89 (0.02) | ||
| Declination | -04 30 47.40 | -04 30 47.28 (0.01) | ||
| Spectral type | sd | sdB7IVeHe3 | ||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.45 (0.05) | 0.46 (0.03) | |
| Distance | [pc] | 2226.68 (245) | 2155.64 (124) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -21.825 (0.1) | -21.787 (0.04) | |
| Proper motion (declination) | [mas/yr] | 0.566 (0.06) | 0.747 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.88 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 13.88 (0.03) | 13.88 (0.03) | ||
| H magnitude | 13.89 (0.04) | 13.89 (0.04) | ||
| K magnitude | 13.98 (0.06) | 13.98 (0.06) | ||
| u magnitude | 13.91 (0.004) | |||
| g magnitude | ||||
| r magnitude | 14.86 (0.01) | |||
| i magnitude | 14.12 (0.005) | |||
| z magnitude | 14.34 (0.006) | |||
| G magnitude | 13.60 (0.0003) | 13.58 (0.003) | ||
| BP magnitude | 13.50 (0.004) | |||
| RP magnitude | 13.70 (0.001) | |||
| Pan g magnitude | 13.49 (0.01) | |||
| Pan r magnitude | 13.78 (0.001) | |||
| Pan i magnitude | 14.05 (0.002) | |||
| Pan z magnitude | 14.24 (0.004) | |||
| Pan y magnitude | 14.36 (0.003) | |||
| E(B-V) | 0.024 | |||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.